[Schema (values) (types)]: | real_estate_properties |  Ref_Feature_Types : feature_type_code (text) , feature_type_name (text) | Ref_Property_Types : property_type_code (text) , property_type_description (text) | Other_Available_Features : feature_id (text) , feature_type_code (text) , feature_name (text) , feature_description (text) | Properties : property_id (text) , property_type_code (text) , date_on_market (text) , date_sold (text) , property_name (text) , property_address (number) , room_count (text) , vendor_requested_price (text) , buyer_offered_price (text) , agreed_selling_price (number) , apt_feature_1 (text) , apt_feature_2 (time) , apt_feature_3 (time) , fld_feature_1 (text) , fld_feature_2 (text) , fld_feature_3 (number) , hse_feature_1 (number) , hse_feature_2 (number) , hse_feature_3 (number) , oth_feature_1 (text) , oth_feature_2 (text) , oth_feature_3 (text) , shp_feature_1 (text) , shp_feature_2 (text) , shp_feature_3 (text) , other_property_details (text) | Other_Property_Features : property_id (text) , feature_id (text) , property_feature_description (text);
[Primary Keys]: ref_feature_types : feature_type_code, ref_property_types : property_type_code, other_available_features : feature_id, properties : property_id
[Foreign Keys]: other_available_features : feature_type_code = ref_feature_types : feature_type_code | properties : property_type_code = ref_property_types : property_type_code | other_property_features : property_id = properties : property_id | other_property_features : feature_id = other_available_features : feature_id

Question: How many available features are there in total?
SQL: SELECT count(*) FROM Other_Available_Features

Question: What is the feature type name of feature AirCon?
SQL: SELECT T2.feature_type_name FROM Other_Available_Features AS T1 JOIN Ref_Feature_Types AS T2 ON T1.feature_type_code  =  T2.feature_type_code WHERE T1.feature_name  =  "AirCon"

Question: Show the property type descriptions of properties belonging to that code.
SQL: SELECT T2.property_type_description FROM Properties AS T1 JOIN Ref_Property_Types AS T2 ON T1.property_type_code  =  T2.property_type_code GROUP BY T1.property_type_code

Question: What are the names of properties that are either houses or apartments with more than 1 room?
SQL: SELECT property_name FROM Properties WHERE property_type_code  =  "House" UNION SELECT property_name FROM Properties WHERE property_type_code  =  "Apartment" AND room_count  >  1